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diment and mud in the water can settle for removal. -- Mud eel (Zoöl.), a long, slender, aquatic amphibian (Siren lacertina), found in the Southern United States. It has persistent external gills and only the anterior pair of legs. See Siren. -- Mud frog (Zoöl.), a European frog (Pelobates fuscus). -- Mud hen. (Zoöl…

A small herbaceous plant growing on muddy shores (Limosella aquatica).

A North American aquatic fur-bearing rodent (Fiber zibethicus). It resembles a rat in color and having a long scaly tail, but the tail is compressed, the bind feet are webbed, and the ears are concealed in the fur. It has scent glands which secrete a substance having a strong odor of musk. Called also musquash, musk be…

Floating in water, as the leaves of water lilies, or submersed, as those of many aquatic plants.

A genus of aquatic hemipterus insects. The species feed upon other insects and are noted for their voracity; -- called also scorpion bug and water scorpion.

Any one of several species of small aquatic salamanders. The common British species are the crested newt (Triton cristatus) and the smooth newt (Lophinus punctatus). In America, Diemictylus viridescens is one of the most abundant species.

kable for its solvent action on gold and platinum; -- called also nitromuriatic acid, and aqua regia.

A genus of aquatic plants having showy flowers (white, blue, pink, or yellow, often fragrant), including the white water lily and the Egyptia lotus.

lmate; -- said of the feet of certain birds. See Illust. of Aves. Oared shrew (Zoöl.), an aquatic European shrew (Crossopus ciliatus); -- called also black water shrew.

An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis. [Written also Odontholcae, and Odontoholcae.]

ies are described. They have large, flattish heads, short ears, and webbed toes. They are aquatic, and feed on fish. Their fur is soft and valuable. The common otter of Europe is Lutra vulgaris; the American otter is L. Canadensis; other species inhabit South America and Asia.

Rock ousel (Zoöl.), the ring ousel. -- Water ousel (Zoöl.), the European dipper (Cinclus aquaticus), and the American dipper (C. Mexicanus).

One of a group of aquatic beetles (Palpicornia) having short club-shaped antennæ, and long maxillary palpi.

Any plant of the genus Pilularia; minute aquatic cryptograms, with small pill-shaped fruit; -- sometimes called peppergrass.

A suborder of aquatic carnivorous mammals including the seals and walruses; -- opposed to Fissipedia.

Any plant of a genus (Eriocaulon) of aquatic or marsh herbs with soft grass-like leaves.

A small-leaved North American tree (Planera aquatica) related to the elm, but having a wingless, nutlike fruit.

orld. Indian plantain. (Bot.) See under Indian. -- Mud plantain, a homely North American aquatic plant (Heteranthera reniformis), having broad, reniform leaves. -- Rattlesnake plantain, an orchidaceous plant (Goodyera pubescens), with the leaves blotched and spotted with white. -- Ribwort plantain. See Ribwort. --…

Any aquatic plant of the genus Potamogeton, of which many species are found in ponds or slow-moving rivers. Choke pondweed, an American water weed (Anarcharis, or Elodea, Canadensis.) See Anacharis. -- Horned pondweed, the Zannichellia palustris, a slender, branching aquatic plant, having pointed nutlets.…

An order of aquatic amphibians having prominent external gills and four legs. It includes Proteus and Menobranchus (Necturus). Called also Proteoidea, and Proteida.